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相干光时域反射计的光频扫描扩展检测

Optical Frequency Scanning Extension Detection of Coherent Optical Time Domain Reflectometry

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摘要

通过改变微波电光调制器的调制频率, 实现光频率扫描。利用光频移产生的后向瑞利散射光干涉图样的变化, 可得到传感温度变化信息。基于温度变化前后两次扫描频率曲线的互相关特性及其与温度变化量的对应关系, 提出了光频率扫描扩展方案。理论分析和实验结果表明, 该方案可有效提高系统的温度测量检测范围。实验中, 信噪比提升了2.13 dB, 系统可检测的最小温度变化量约为0.029 ℃。

Abstract

By changing the modulation frequency of the microwave electro-optic modulator, we achieve the optical frequency scanning. Using the variation of the interference pattern of the backward Rayleigh scattered light generated by the optical frequency shift, we can obtain the information of the sensing temperature change. Based on the cross-correlation properties of the two scanning frequency curves before and after the temperature change and their correspondence with the temperature variation, we propose an optical frequency scanning extension scheme. Theoretical analysis and experimental results show that the proposed scheme can effectively improve the temperature detection range of the system. In the experiment, the signal-to-noise ratio is improved by 2.13 dB, and the minimum detectable temperature change of the system is about 0.029 ℃.

Newport宣传-MKS新实验室计划
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中图分类号:TP212

DOI:10.3788/cjl201946.0410002

所属栏目:遥感与传感器

收稿日期:2018-11-21

修改稿日期:2018-12-13

网络出版日期:2019-01-22

作者单位    点击查看

宋牟平:浙江大学信息与电子工程学院, 浙江 杭州 310027
吴媖:浙江大学信息与电子工程学院, 浙江 杭州 310027
朱伟基:浙江大学信息与电子工程学院, 浙江 杭州 310027
庄守望:浙江大学信息与电子工程学院, 浙江 杭州 310027
王轶轩:浙江大学信息与电子工程学院, 浙江 杭州 310027

联系人作者:吴媖(m13023266624@163.com); 宋牟平(songmp@zje.edu.cn);

【1】Zhang Z X. The temperature effect of optical fiber back-scattering and the applied research for distributed optical fiber temperature sensor network[J]. Chinese Journal of Atomic and Molecular Physics, 2000, 17(3): 559-565.
张在宣. 光纤分子背向散射的温度效应及其在分布光纤温度传感网络上应用研究的进展[J]. 原子与分子物理学报, 2000, 17(3): 559-565.

【2】Lu X, Soto M A, Thevenaz L. Impact of the fiber coating on the temperature response of distributed optical fiber sensors at cryogenic ranges[J]. Journal of Lightwave Technology, 2018, 36(4): 961-967.

【3】Iezzi V L, Loranger S, Kashyap R. High sensitivity distributed temperature fiber sensor using stimulated Brillouin scattering[J]. Optics Express, 2017, 25(26): 32591-32601.

【4】Song M P, Bao C, Ye X F. Raman distributed optical fiber sensor with simplex coding optical external modulation[J]. Chinese Journal of Lasers, 2010, 37(6): 1462-1466.
宋牟平, 鲍翀, 叶险峰. 采用Simplex编码光外调制的拉曼散射分布式光纤传感器[J]. 中国激光, 2010, 37(6): 1462-1466.

【5】Liu Y P, Ma L, Yang C, et al. Long-range Raman distributed temperature sensor with high spatial and temperature resolution using graded-index few-mode fiber[J]. Optics Express, 2018, 26(16): 20562-20571.

【6】Zhang L, Feng X, Zhang W, et al. Improving spatial resolution in fiber Raman distributed temperature sensor by using deconvolution algorithm[J]. Chinese Optics Letters, 2009, 7(7): 560-563.

【7】Song M P. The technique of Brillouin scattering-distributed optical fiber sensing based on microwave electrooptical modulation[J]. Acta Optica Sinica, 2004, 24(8): 1111-1114.
宋牟平. 微波电光调制的布里渊散射分布式光纤传感技术[J]. 光学学报, 2004, 24(8): 1111-1114.

【8】Yang Z S, Soto M A, Chow D M, et al. Brillouin distributed optical fiber sensor based on a closed-loop configuration[J]. Journal of Lightwave Technology, 2018, 36(5): 1239-1248.

【9】Xu P B, Ba D X, He W M, et al. Distributed Brillouin optical fiber temperature and strain sensing at a high temperature up to 1000 ℃ by using an annealed gold-coated fiber[J]. Optics Express, 2018, 26(23): 29724-29734.

【10】Bethea C G, Levine B F, Cova S, et al. High-resolution and high-sensitivity optical-time-domain reflectometer[J]. Optics Letters, 1988, 13(3): 233-235.

【11】Rourke M D. Measurement of the insertion loss of a single microbend[J]. Optics Letters, 1981, 6(9): 440-442.

【12】Peng F, Wu H, Jia X H, et al. Ultra-long high-sensitivity Φ-OTDR for high spatial resolution intrusion detection of pipelines[J]. Optics Express, 2014, 22(11): 13804-13810.

【13】Song M P, Zhu W J, Xia Q L, et al. 151-km single-end phase-sensitive optical time-domain reflectometer assisted by optical repeater[J]. Optical Engineering, 2018, 57(2): 027104.

【14】Ye Q, Pan Z Q, Wang Z Y, et al. Progress of research and applications of phase-sensitive optical time domain reflectometry[J]. Chinese Journal of Lasers, 2017, 44(6): 0600001.
叶青, 潘政清, 王照勇, 等. 相位敏感光时域反射仪研究和应用进展[J]. 中国激光, 2017, 44(6): 0600001.

【15】Mei X W, Pang F F, Liu H H, et al. Fast coarse-fine locating method for φ-OTDR[J]. Optics Express, 2018, 26(3): 2659-2667.

【16】Wang X, Liu M H, Yu M, et al. Analysis and improvement for digital quadrature demodulation algorithm on phase-sensitive optical time-domain reflectometric system[J]. Chinese Journal of Lasers, 2017, 44(12): 1210002.
王旭, 刘珉含, 于淼, 等. 相位敏感光时域反射系统数字正交解调算法分析及改进研究[J]. 中国激光, 2017, 44(12): 1210002.

【17】Pastor-Graells J, Martins H F, Garcia-Ruiz A, et al. Single-shot distributed temperature and strain tracking using direct detection phase-sensitive OTDR with chirped pulses[J]. Optics Express, 2016, 24(12): 13121-13133.

【18】Du Y, Liu T G, Ding Z Y, et al. Cryogenic temperature measurement using rayleigh backscattering spectra shift by OFDR[J]. IEEE Photonics Technology Letters, 2014, 26(11): 1150-1153.

【19】Zhou D P, Qin Z G, Li W H, et al. Distributed vibration sensing with time-resolved optical frequency-domain reflectometry[J]. Optics Express, 2012, 20(12): 13138-13145.

【20】Koyamada Y, Imahama M, Kubota K, et al. Fiber-optic distributed strain and temperature sensing with very high measurand resolution over long range using coherent OTDR[J]. Journal of Lightwave Technology, 2009, 27(9): 1142-1146.

【21】Feng K B, Song M P, Xia Q L, et al. High-resolution distributed optical-fiber sensing techology based on direct-detecting coherent optical time-domain reflectometer[J].Acta Optica Sinica, 2016, 36(1): 0106002.
冯凯滨, 宋牟平, 夏俏兰, 等. 基于直接检测相干光时域反射计的高分辨率分布式光纤传感技术[J]. 光学学报, 2016,36(1): 0106002.

【22】Liehr S, Muanenda Y S, Münzenberger S, et al. Relative change measurement of physical quantities using dual-wavelength coherent OTDR[J]. Optics Express, 2017, 25(2): 720-729.

引用该论文

Song Muping,Wu Ying,Zhu Weiji,Zhuang Shouwang,Wang Yixuan. Optical Frequency Scanning Extension Detection of Coherent Optical Time Domain Reflectometry[J]. Chinese Journal of Lasers, 2019, 46(4): 0410002

宋牟平,吴媖,朱伟基,庄守望,王轶轩. 相干光时域反射计的光频扫描扩展检测[J]. 中国激光, 2019, 46(4): 0410002

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